Doping induced inhomogeneity in high-Tc superconductors

Abstract

Doping and disorder are inseparable in the superconducting cuprates. Assuming the simplest possible disordered doping, we construct a semiphenomenological model and analyze its experimental consequences. Among the affected experimental quantities are the ARPES spectra and thermodynamic properties. From our model we make a prediction for the width of the local superconducting gap distribution with the only experimentally unknown parameter being the superconducting correlation length. Thus, our model provides a direct way of determining the superconducting correlation length from a known experimental gap distribution.

5 pages, 3 eps figures. Expanded version of talk presented by AVB at the ISS 2000, Oct 14-16, Tokyo, Japan

Cited by in corpus (22)

• Imaging the granular structure of high-Tc superconductivity in underdoped Bi2Sr2CaCu2O8+x
• Effect of chemical inhomogeneity in the bismuth-based copper oxide superconductors
• Imaging the impact on cuprate superconductivity of varying the inter-atomic distances within individual crystal unit-cells
• The wave-vector power spectrum of the local tunnelling density of states: ripples in a d-wave sea
• Dopant-modulated pair interaction in cuprate superconductors
• Spectroscopic Imaging STM Studies of Electronic Structure in the Superconducting and Pseudogap Phases of Cuprate High-Tc Superconductors
• Inhomogeneity-induced enhancement of the pairing interaction in cuprates
• Local electronic structure near oxygen dopants in BSCCO-2212: a window on the high-Tc pair mechanism?
• Electronic Structure of the Cuprate Superconducting and Pseudogap Phases from Spectroscopic Imaging STM
• Correlating off-stoichiometric doping with nanoscale electronic disorder and quasiparticle interference pattern in high-$T_c$ superconductor Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Nanoscale interplay of strain and doping in a high-temperature superconductor
• Erratum: Nodal Cooper-pair stabilized phase dynamics in granular d-wave superconductors
• Single-Particle Density of States of a Superconductor with a Spatially Varying Gap and Phase Fluctuations
• Local quasiparticle lifetimes in a d-wave superconductor
• Real space inhomogeneities in high temperature superconductors: the perspective of two-component model
• Interplay between atomic fluctuations and charge density waves in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Effects of inhomogeneities and thermal fluctuations on the spectral function of a model d-wave superconductor
• Quantitative characterization of the nanoscale local lattice strain induced by Sr dopants in La${}_{1.92}$Sr${}_{0.08}$CuO${}_4$
• Signatures of modulated pair interaction in cuprate superconductors
• Fluctuating order parameter in doped cuprate superconductors
• Influence of the atomic-scale inhomogeneity of the pair interaction on extracted from the STM spectra characteristics of high-$T_c$ superconductors
• Direct observation of the surface superconducting gap in the topological superconductor candidate β-PdBi2